Granville, West Virginia has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 42.1 °F (low) to 63.3 °F (high). Annual precipitation averages 44.8 Inches. Granville is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 21.9 °F | 39.2 °F | 3.43 in. |
| February | 23.6 °F | 42.4 °F | 3.17 in. |
| March | 29.9 °F | 51.6 °F | 3.77 in. |
| April | 39.8 °F | 64.8 °F | 3.86 in. |
| May | 49.9 °F | 73.6 °F | 4.39 in. |
| June | 58.5 °F | 80.9 °F | 4.19 in. |
| July | 62.8 °F | 84.4 °F | 4.8 in. |
| August | 61.5 °F | 83.5 °F | 3.86 in. |
| September | 54.6 °F | 77.6 °F | 3.37 in. |
| October | 43.0 °F | 65.6 °F | 3.12 in. |
| November | 33.4 °F | 53.3 °F | 3.12 in. |
| December | 26.8 °F | 43.1 °F | 3.67 in. |
| Annual | 42.1 °F | 63.3 °F | 44.75 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |